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Re: [Linphone-developers] Problem running linphone on ARM processor

From: Code Warrior
Subject: Re: [Linphone-developers] Problem running linphone on ARM processor
Date: Thu, 2 Jul 2009 14:58:05 +0530

Audio playback and capture work perfectly with Alsa utilities. I ran arecord and aplay
on the ARM board simulatenously. I could hear the playback and the recording was 
successful as well. 

I guess the issue could be the way ALSA APIs have been used in the mediastreamer2
framework. As stated earlier, could be an issue with the device selection by the mediastreamer2.

On Thu, Jul 2, 2009 at 1:50 PM, Code Warrior <address@hidden> wrote:
Possibly..I'm trying to run simulataneous record & playback using ALSA utils.

On Thu, Jul 2, 2009 at 1:39 PM, Simon Morlat <address@hidden> wrote:

This seems to be the same symtoms as "Noname Noname". Could it be possible
that the alsa driver be half duplex only, ie it cannot capture and playback
simultaneously ?


Le jeudi 2 juillet 2009 08:29:45, Harishkumar V a écrit :
> Hi,
> I am using linphone 3.1.0 on a ARM based platform. i am using full featured
> version (ie) both video and audio.
> When i am testing between my ARM board and Linux PC, i observed following
> observation,
> 1)Video call both sides tranfser perfect.
> 2)Audio from PC end to ARM end only is working, but the audio flow from ARM
> end to PC end not working.
> I tested my soundcard using aplay and arecord, both the playback and
> capture is prefect.
> What might be the cause for this?
> how then arecord works, but alsa_read_process() fails to read any datas.
> Thanks and Regards,
> HarishKumar.V
> On Wed, Jul 1, 2009 at 5:30 PM, Noname Noname <address@hidden> wrote:
> > Hi,
> > I'm trying to run Linphone on an ARM based platform. Although the call
> > (plain audio) establishes successfully,
> > i can only hear one way audio (coming from PC towards ARM platform).
> > There is no audio flow from ARM Mic.
> >
> > + I'm using speex 16K encoding.
> > + Using ALSA default device for playback/capture. Mic/Speaker works fine
> > as tested using ALSA utilities
> > + Currently, I'm not using any video component
> > + CPU utilization is under 3% for Linphone
> >
> > I can see that although Fn: alsa_read_process (ALSA Filter) does execute,
> > filter process for speex encoder (enc_process) is never scheduled
> > (which clearly states the problem but not the cause). Also, in the logs,
> > i can see lot of traces for MS ticker "We are late
> > of xxx miliseconds". This is from source file msticker.c.
> >
> > Any thoughts/suggestions would really help.
> >
> > thanks
> > /csj
> >
> > _______________________________________________
> > Linphone-developers mailing list
> > address@hidden
> >

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